MUÑOZ, ROSANA1; OLIVEIRA, MÁRIO MENDONÇA DE2; MAGALHÃES, ANA CRISTIAN3; CAFEZEIRO, YAN GRACO4; D’AFFONSÊCA, SILVIA PIMENTA5

1) Doctor, Federal University of Bahia, Faculty of Architecture and NTPR – Núcleo de Tecnologia da Preservação e da Restauração, munoz.rosana@gmail.com

2) Doctor, Federal University of Bahia, NTPR – Núcleo de Tecnologia da Preservação e da Restauração, mmo1936@gmail.com

3) Master, Federal University of Bahia, NTPR – Núcleo de Tecnologia da Preservação e da Restauração, anacristian@hotmail.com

4) Architect, Federal University of Bahia, NTPR – Núcleo de Tecnologia da Preservação e da Restauração, yan.graco@gmail.com

5) Master, Federal University of Bahia, NTPR – Núcleo de Tecnologia da Preservação e da Restauração, silvia.daffonseca@gmail.com

The Nossa Senhora da Escada Chapel dates back to the second half of the sixteenth century and it is located near the suburban railway of Salvador, first capital of Brazil. Built with mixed masonry and lime mortar, over the years it underwent several interventions due to the damage caused by expansive soil behaviour and to the processes of decay and ruining. In 2008, the Chapel faced, among others works, the stabilization of the soil. Five years later, technical visitors observed that the building still had some cracks. This paper aims at assessing the vibratory impact of the trains by comparing the results obtained through accelerometers with limits established by European standards. As a result, it will be presented the vibration analysis apart from procedure for expansive soil stabilization. It is emphasized the importance of the work to heritage diagnosis and consequent adoption of appropriate strategies of intervention.

Keywords: masonry, vibration, train, Salvador, accelerometers